THE PLIOCENE SKULL. This extraordinary fossil is in the possession of Prof. Josiah D. Whitney, of the State Geological Survey of California. The poem was based on the following paragraph from the daily press of 1868: "A human skull has been found in California, in the pliocene formation. This skull is the remnant not only of the earliest pioneer of this State, but the oldest known human being.... The skull was found in a shaft 150 feet deep, two miles from Angels in Calaveras County, by a miner named James Watson, who gave it to Mr. Scribner, a merchant, who gave it to Dr. Jones, who sent it to the State Geological Survey.... The published volume of the State Survey of the Geology of California states that man existed here contemporaneously with the mastodon, but this fossil proves that he was here before the mastodon was known to exist."